I noticed this myself. I had over 60,000 records in Pluto_media.File. I just checked again and it's down to ~ 2,000. I had thought to reformat my MD hard drives. Not sure why I have them in the first place. Just habit I guess.I shoved old drives in them. Maybe it was picking up the gazillion media files floating on them?

Also chose all public as setup. Not sure if any of this did anything just thought I'd share.